Diagnostic Test

WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC

Turn the ignition on.
With the scan tool, read DTCs and record on the repair order.
Is the DTC active or pending?

Yes
- The BARO Sensor is located inside the PCM. Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL AND INSTALLATION .
  NOTE:
  Verify that the Battery/System voltage is not low before replacing the PCM. Low voltage to the PCM can cause an erroneous fault to set.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to: 2.0L - POWERTRAIN VERIFICATION TEST .
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to: 2.0L - INTERMITTENT CONDITION .